GiESCO 2019 banner
IVES 9 IVES Conference Series 9 GiESCO 9 Characterization of simple polyphenols in seeds of autochthonous grapevine varieties grown in Croatia (Vitis vinifera L.)

Characterization of simple polyphenols in seeds of autochthonous grapevine varieties grown in Croatia (Vitis vinifera L.)

Abstract

Context and purpose of the study – Croatia has rich grapevine genetic resources with more than 125 autochthonous varieties preserved. Coastal region of Croatia, Dalmatia, is well known for wine production based on autochthonous grapevine varieties. Nevertheless, only couple of these are widely cultivated and have greater economic importance. Grape seeds are sources of polyphenols which play an important role in organoleptic and nutritional value of grape and wine. Hence, the aim of this study was to evaluate the simple polyphenols from grape seeds in 20 rare autochthonous grapevine varieties.

Material and methods – Samples were collected during two consecutive years (2011. and 2012.) from germplasm collection in Split (Dalmatia). Grape samples were constituted of five bunches of fully ripe grapes. Seeds were manually separated, freeze-dried, grounded and stored at a low temperature until analyses. Polyphenolic compounds were analysed using HPLC analysis.

Results – Eight polyphenolic compounds, galic acid, monomeric flavan-3-ols (catechin, epicatechin, gallocatechin and epicatechin 3-O-gallate) and procyanidin dimers (B1, B2 and B4) were detected. According to the investigated polyphenolic compounds significant differences between investigated varieties were found. Gallic acid content ranged from 91.0 to 245.08 total monomeric flavan-3-ols from 619.2 to 13539.6 mg kg-1 and total procyanidin dimers from 975.3 to 4140.2 mg kg-1 of seed. Catechin (263.2 to 8124.2 mg kg-1 seed) was found as main monomeric flavan-3-ol, epicatechin 3-O-gallate, gallocatchin and epicatechin varied between 0-164.31, 37.19-155.07 and 277.5-5224.4 mg kg-1 seed, respectively. Procyanidin B2 (420.2 to 2207.8 mg kg-1 seed) was found as a main procyanidin dimer. Procyanidin B1 and B4 amount varied between 401.80-165.19 and 276,7-1539.4 mg kg-1 seed, respectively. Gegić had lowest and varieties Plavac mali and Babić highest amount of all investigated polyphenolic compounds. This study presents the first evaluation of Croatian grapevine varieties by characterization of seed polyphenolic compounds and it shows huge variability among them. More detailed analysis of polyphenolic compounds in selected varieties are carry out in our further research activities.

DOI:

Publication date: March 11, 2024

Issue: GiESCO 2019

Type: Poster

Authors

Željko ANDABAKA1, Edi MALETIĆ1,2, Domagoj STUPIĆ1, Darko PREINER1,2, Jasminka KAROGLAN KONTIĆ1,2, Ivana TOMAZ1, Iva ŠIKUTEN1, Petra ŠTAMBUK2, Zvjezdana MARKOVIĆ1*

1 University of Zagreb Faculty of Agriculture, Svetošimunska 25, 10 000 Zagreb, Croatia
2 Centre of Excellence for Biodiversity and Molecular Plant Breeding, Svetošimunska 25, HR-10000 Zagreb

Contact the author

Keywords

Grapevine, Autochthonous, Polyphenols, Seed, Croatia

Tags

GiESCO | GiESCO 2019 | IVES Conference Series

Citation

Related articles…

The state of the climate

The climate has warmed over the past century or more bringing about changes in numerous aspects in both earth and human systems

Influence of irrigation frequency on berry phenolic composition of red grape varieties cultivated in four spanish wine-growing regions

The global warming phenomenon involves the frequency of extreme meteorological events accompanied by a change in rainfall distribution. Irrigation frequency (IF) affects the spatial and temporal soil water distribution but its effects on the phenolic composition of the grape have been scarcely studied. The aim of this work was to evaluate the effects of four deficit irrigation frequencies of 30 % ETo: one irrigation per day (T01), two irrigations per week (T03), one irrigation per week (T07) and one irrigation every two weeks (T15) on berry phenolic composition at harvest.

NAVIC–20 years of a lean management model for wine business R&D

Considering That Innovation Supports A Company’s Competitive Advantage And Drive Higher Profits (Dogru A. & Peyrette J., 2022), A Key Challenge Of Wine Companies Is Getting Practitioners To Understand That Innovation-Related Wine Research Increases The Likelihood Of Competitive Advantage, Bringing Financial Success. A Continued And Enhanced Investment In Research Is, Thus, A Prerequisite For Commercial Success In Today’s Globalized And Competitive Wine Industry (Høj P., Pretorius I.S., & Day R., 2003).

Impact of reduction alcohol techiniques in the aromatic chemical profile of rosé Tempranillo wines

Studying the impact of reducing alcohol techniques in the chemical composition of the aromatic profile of rosé Tempranillo wines from the spanish region of Castilla-La Mancha INTRODUCTION: In the last decades there has been an increseasing demand of wines with low or non-existing alcohol concentration due to the negative effects that alcohol has in health. In spite of that, there are not laws that protect these products, and there is also a great difficulty in the elaboration of these type of wines due to the increasing temperatures because of climate change. This is why the oenological industry has made great advances in the development of different techniques that could satisfy consumers’ demands without modifying wine quality. The most used techniques have been post-fermentative ones.

A research agenda for terroir: an empirical, international expert study

Aim: Terroir is a French concept relating the qualities and quality of agricultural products to their physical and socio-cultural place of origin. It is increasingly used by business and policymakers as a marketing technique to provide economic benefits (e.g. Lenglet, 2014; Wine Australia, 2015), and to potentially preserve cultural heritage (e.g. Bauer, 2009) and the environment (e.g. Bowen, 2010)